Merge pull request #4157 from jekyll/upgrading-to-3.0
Merge pull request 4157
This commit is contained in:
Parker Moore
commit
58c9a070a7
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@ -39,7 +39,8 @@
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- troubleshooting
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- sites
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- resources
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- upgrading
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- upgrading/0-to-2
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- upgrading/2-to-3
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- title: Meta
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docs:
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@ -4,137 +4,7 @@ title: Upgrading
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permalink: /docs/upgrading/
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---
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Upgrading from an older version of Jekyll? A few things have changed in 1.0
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that you'll want to know about.
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Upgrading from an older version of Jekyll? Upgrading to a new major version of Jekyll (e.g. from v2.x to v3.x) may cause some headaches. Take the following guides to aid your upgrade:
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Before we dive in, go ahead and fetch the latest version of Jekyll:
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{% highlight bash %}
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$ gem update jekyll
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{% endhighlight %}
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<div class="note feature">
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<h5 markdown="1">Diving in</h5>
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<p markdown="1">Want to get a new Jekyll site up and running quickly? Simply
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run <code>jekyll new SITENAME</code> to create a new folder with a bare bones
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Jekyll site.</p>
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</div>
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### The Jekyll Command
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For better clarity, Jekyll now accepts the commands `build` and `serve`.
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Whereas before you might simply run the command `jekyll` to generate a site
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and `jekyll --server` to view it locally, in v2.0 (and later) you should
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use the subcommands `jekyll build` and `jekyll serve` to build and preview
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your site.
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<div class="note info">
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<h5>Watching and Serving</h5>
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<p markdown="1">With the new subcommands, the way sites are previewed locally
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changed a bit. Instead of specifying `server: true` in the site's
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configuration file, use `jekyll serve`. The same holds true for
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`watch: true`. Instead, use the `--watch` flag with either `jekyll serve`
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or `jekyll build`.</p>
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</div>
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### Absolute Permalinks
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In Jekyll v1.0, we introduced absolute permalinks for pages in
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subdirectories. Starting with v2.0, absolute permalinks are opt-out,
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meaning Jekyll will default to using absolute permalinks instead of
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relative permalinks. Relative permalink backwards-compatibility was removed in v3.0.
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<div class="note warning" id="absolute-permalinks-warning">
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<h5 markdown="1">Absolute permalinks will be required in v3.0 and on</h5>
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<p markdown="1">
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Starting with Jekyll v3.0, relative permalinks functionality will be removed and thus unavailable for use.
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</p>
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</div>
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### Draft Posts
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Jekyll now lets you write draft posts, and allows you to easily preview how
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they will look prior to publishing. To start a draft, simply create a folder
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called `_drafts` in your site's source directory (e.g., alongside `_posts`),
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and add a new markdown file to it. To preview your new post, simply run the
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`jekyll serve` command with the `--drafts` flag.
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<div class="note info">
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<h5 markdown="1">Drafts don't have dates</h5>
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<p markdown="1">
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Unlike posts, drafts don't have a date, since they haven't
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been published yet. Rather than naming your draft something like
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`2013-07-01-my-draft-post.md`, simply name the file what you'd like your
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post to eventually be titled, here `my-draft-post.md`.</p>
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</div>
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### Custom Config File
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Rather than passing individual flags via the command line, you can now pass
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an entire custom Jekyll config file. This helps to distinguish between
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environments, or lets you programmatically override user-specified
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defaults. Simply add the `--config` flag to the `jekyll` command, followed
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by the path to one or more config files (comma-delimited, no spaces).
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#### As a result, the following command line flags are now deprecated:
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* `--no-server`
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* `--no-auto` (now `--no-watch`)
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* `--auto` (now `--watch`)
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* `--server`
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* `--url=`
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* `--maruku`, `--rdiscount`, and `--redcarpet`
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* `--pygments`
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* `--permalink=`
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* `--paginate`
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<div class="note info">
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<h5>The config flag explicitly specifies your configuration file(s)</h5>
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<p markdown="1">If you use the `--config` flag, Jekyll will ignore your
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`_config.yml` file. Want to merge a custom configuration with the normal
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configuration? No problem. Jekyll will accept more than one custom config
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file via the command line. Config files cascade from right to left, such
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that if I run `jekyll serve --config _config.yml,_config-dev.yml`,
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the values in the config files on the right (`_config-dev.yml`) overwrite
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those on the left (`_config.yml`) when both contain the same key.</p>
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</div>
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### New Config File Options
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Jekyll 1.0 introduced several new config file options. Before you upgrade,
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you should check to see if any of these are present in your pre-1.0 config
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file, and if so, make sure that you're using them properly:
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* `excerpt_separator`
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* `host`
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* `include`
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* `keep_files`
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* `layouts`
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* `show_drafts`
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* `timezone`
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* `url`
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### Baseurl
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Often, you'll want the ability to run a Jekyll site in multiple places,
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such as previewing locally before pushing to GitHub Pages. Jekyll 1.0 makes
|
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that easier with the new `--baseurl` flag. To take advantage of this
|
||||
feature, first add the production `baseurl` to your site's `_config.yml`
|
||||
file. Then, throughout the site, simply prefix relative URLs
|
||||
with `{% raw %}{{ site.baseurl }}{% endraw %}`.
|
||||
When you're ready to preview your site locally, pass along the `--baseurl`
|
||||
flag with your local baseurl (most likely `/`) to `jekyll serve` and Jekyll
|
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will swap in whatever you've passed along, ensuring all your links work as
|
||||
you'd expect in both environments.
|
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<div class="note warning">
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<h5 markdown="1">All page and post URLs contain leading slashes</h5>
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<p markdown="1">If you use the method described above, please remember
|
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that the URLs for all posts and pages contain a leading slash. Therefore,
|
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concatenating the site baseurl and the post/page url where
|
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`site.baseurl = /` and `post.url = /2013/06/05/my-fun-post/` will
|
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result in two leading slashes, which will break links. It is thus
|
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suggested that prefixing with `site.baseurl` only be used when the
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`baseurl` is something other than the default of `/`.</p>
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</div>
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- [From 0.x to 1.x and 2.x](/docs/upgrading/0-to-2/)
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- [From 2.x to 3.x](/docs/upgrading/2-to-3/)
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@ -0,0 +1,140 @@
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---
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layout: docs
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title: Upgrading from 0.x to 2.x
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permalink: /docs/upgrading/0-to-2/
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---
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Upgrading from an older version of Jekyll? A few things have changed in 1.0
|
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and 2.0 that you'll want to know about.
|
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|
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Before we dive in, go ahead and fetch the latest version of Jekyll:
|
||||
|
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{% highlight bash %}
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$ gem update jekyll
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{% endhighlight %}
|
||||
|
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<div class="note feature">
|
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<h5 markdown="1">Diving in</h5>
|
||||
<p markdown="1">Want to get a new Jekyll site up and running quickly? Simply
|
||||
run <code>jekyll new SITENAME</code> to create a new folder with a bare bones
|
||||
Jekyll site.</p>
|
||||
</div>
|
||||
|
||||
### The Jekyll Command
|
||||
|
||||
For better clarity, Jekyll now accepts the commands `build` and `serve`.
|
||||
Whereas before you might simply run the command `jekyll` to generate a site
|
||||
and `jekyll --server` to view it locally, in v2.0 (and later) you should
|
||||
use the subcommands `jekyll build` and `jekyll serve` to build and preview
|
||||
your site.
|
||||
|
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<div class="note info">
|
||||
<h5>Watching and Serving</h5>
|
||||
<p markdown="1">With the new subcommands, the way sites are previewed locally
|
||||
changed a bit. Instead of specifying `server: true` in the site's
|
||||
configuration file, use `jekyll serve`. The same holds true for
|
||||
`watch: true`. Instead, use the `--watch` flag with either `jekyll serve`
|
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or `jekyll build`.</p>
|
||||
</div>
|
||||
|
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### Absolute Permalinks
|
||||
|
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In Jekyll v1.0, we introduced absolute permalinks for pages in
|
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subdirectories. Starting with v2.0, absolute permalinks are opt-out,
|
||||
meaning Jekyll will default to using absolute permalinks instead of
|
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relative permalinks. Relative permalink backwards-compatibility was removed in v3.0.
|
||||
|
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<div class="note warning" id="absolute-permalinks-warning">
|
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<h5 markdown="1">Absolute permalinks will be required in v3.0 and on</h5>
|
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<p markdown="1">
|
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Starting with Jekyll v3.0, relative permalinks functionality will be removed and thus unavailable for use.
|
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</p>
|
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</div>
|
||||
|
||||
### Draft Posts
|
||||
|
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Jekyll now lets you write draft posts, and allows you to easily preview how
|
||||
they will look prior to publishing. To start a draft, simply create a folder
|
||||
called `_drafts` in your site's source directory (e.g., alongside `_posts`),
|
||||
and add a new markdown file to it. To preview your new post, simply run the
|
||||
`jekyll serve` command with the `--drafts` flag.
|
||||
|
||||
<div class="note info">
|
||||
<h5 markdown="1">Drafts don't have dates</h5>
|
||||
<p markdown="1">
|
||||
Unlike posts, drafts don't have a date, since they haven't
|
||||
been published yet. Rather than naming your draft something like
|
||||
`2013-07-01-my-draft-post.md`, simply name the file what you'd like your
|
||||
post to eventually be titled, here `my-draft-post.md`.</p>
|
||||
</div>
|
||||
|
||||
### Custom Config File
|
||||
|
||||
Rather than passing individual flags via the command line, you can now pass
|
||||
an entire custom Jekyll config file. This helps to distinguish between
|
||||
environments, or lets you programmatically override user-specified
|
||||
defaults. Simply add the `--config` flag to the `jekyll` command, followed
|
||||
by the path to one or more config files (comma-delimited, no spaces).
|
||||
|
||||
#### As a result, the following command line flags are now deprecated:
|
||||
|
||||
* `--no-server`
|
||||
* `--no-auto` (now `--no-watch`)
|
||||
* `--auto` (now `--watch`)
|
||||
* `--server`
|
||||
* `--url=`
|
||||
* `--maruku`, `--rdiscount`, and `--redcarpet`
|
||||
* `--pygments`
|
||||
* `--permalink=`
|
||||
* `--paginate`
|
||||
|
||||
<div class="note info">
|
||||
<h5>The config flag explicitly specifies your configuration file(s)</h5>
|
||||
<p markdown="1">If you use the `--config` flag, Jekyll will ignore your
|
||||
`_config.yml` file. Want to merge a custom configuration with the normal
|
||||
configuration? No problem. Jekyll will accept more than one custom config
|
||||
file via the command line. Config files cascade from right to left, such
|
||||
that if I run `jekyll serve --config _config.yml,_config-dev.yml`,
|
||||
the values in the config files on the right (`_config-dev.yml`) overwrite
|
||||
those on the left (`_config.yml`) when both contain the same key.</p>
|
||||
</div>
|
||||
|
||||
### New Config File Options
|
||||
|
||||
Jekyll 1.0 introduced several new config file options. Before you upgrade,
|
||||
you should check to see if any of these are present in your pre-1.0 config
|
||||
file, and if so, make sure that you're using them properly:
|
||||
|
||||
* `excerpt_separator`
|
||||
* `host`
|
||||
* `include`
|
||||
* `keep_files`
|
||||
* `layouts`
|
||||
* `show_drafts`
|
||||
* `timezone`
|
||||
* `url`
|
||||
|
||||
### Baseurl
|
||||
|
||||
Often, you'll want the ability to run a Jekyll site in multiple places,
|
||||
such as previewing locally before pushing to GitHub Pages. Jekyll 1.0 makes
|
||||
that easier with the new `--baseurl` flag. To take advantage of this
|
||||
feature, first add the production `baseurl` to your site's `_config.yml`
|
||||
file. Then, throughout the site, simply prefix relative URLs
|
||||
with `{% raw %}{{ site.baseurl }}{% endraw %}`.
|
||||
When you're ready to preview your site locally, pass along the `--baseurl`
|
||||
flag with your local baseurl (most likely `/`) to `jekyll serve` and Jekyll
|
||||
will swap in whatever you've passed along, ensuring all your links work as
|
||||
you'd expect in both environments.
|
||||
|
||||
|
||||
<div class="note warning">
|
||||
<h5 markdown="1">All page and post URLs contain leading slashes</h5>
|
||||
<p markdown="1">If you use the method described above, please remember
|
||||
that the URLs for all posts and pages contain a leading slash. Therefore,
|
||||
concatenating the site baseurl and the post/page url where
|
||||
`site.baseurl = /` and `post.url = /2013/06/05/my-fun-post/` will
|
||||
result in two leading slashes, which will break links. It is thus
|
||||
suggested that prefixing with `site.baseurl` only be used when the
|
||||
`baseurl` is something other than the default of `/`.</p>
|
||||
</div>
|
||||
|
|
@ -0,0 +1,64 @@
|
|||
---
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||||
layout: docs
|
||||
title: Upgrading from 2.x to 3.x
|
||||
permalink: /docs/upgrading/2-to-3/
|
||||
---
|
||||
|
||||
Upgrading from an older version of Jekyll? A few things have changed in 3.0
|
||||
that you'll want to know about.
|
||||
|
||||
Before we dive in, go ahead and fetch the latest version of Jekyll:
|
||||
|
||||
{% highlight bash %}
|
||||
$ gem update jekyll
|
||||
{% endhighlight %}
|
||||
|
||||
<div class="note feature">
|
||||
<h5 markdown="1">Diving in</h5>
|
||||
<p markdown="1">Want to get a new Jekyll site up and running quickly? Simply
|
||||
run <code>jekyll new SITENAME</code> to create a new folder with a bare bones
|
||||
Jekyll site.</p>
|
||||
</div>
|
||||
|
||||
### site.collections has changed
|
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|
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In 2.x, your iterations over `site.collections` yielded an array with the collection
|
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label and the collection object as the first and second items, respectively. In 3.x,
|
||||
this complication has been removed and iterations now yield simply the collection object.
|
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A simple conversion must be made in your templates:
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|
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- `collection[0]` becomes `collection.label`
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- `collection[1]` becomes `collection`
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When iterating over `site.collections`, ensure the above conversions are made.
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||||
|
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### Dropped dependencies
|
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|
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We dropped a number of dependencies the Core Team felt were optional. As such, in 3.0, they must be explicitly installed and included if you use any of the features. They are:
|
||||
|
||||
- jekyll-paginate – Jekyll's pagination solution from days past
|
||||
- jekyll-coffeescript – processing of CoffeeScript
|
||||
- jekyll-gist – the `gist` Liquid tag
|
||||
- pygments.rb – the Pygments highlighter
|
||||
- redcarpet – the Markdown processor
|
||||
- toml – an alternative to YAML for configuration files
|
||||
- classifier-reborn – for `site.related_posts`
|
||||
|
||||
### Future posts
|
||||
|
||||
A seeming feature regression in 2.x, the `--future` flag was automatically _enabled_.
|
||||
The future flag allows post authors to give the post a date in the future and to have
|
||||
it excluded from the build until the system time is equal or after the post time.
|
||||
In Jekyll 3, this has been corrected. **Now, `--future` is disabled by default.**
|
||||
This means you will need to include `--future` if you want your future-dated posts to
|
||||
generate when running `jekyll build` or `jekyll serve`.
|
||||
|
||||
### Layout metadata
|
||||
|
||||
Introducing: `layout`. In Jekyll 2 and below, any metadata in the layout was munged onto
|
||||
the `page` variable in Liquid. This caused a lot of confusion in the way the data was
|
||||
merged and some unexpected behaviour. In Jekyll 3, all layout data is accessible via `layout`
|
||||
in Liquid. For example, if your layout has `class: my-layout` in its YAML front matter,
|
||||
then the layout can access that via `{% raw %}{{ layout.class }}{% endraw %}`.
|
||||
|
||||
_Did we miss something? Please click "Improve this page" above and add a section. Thanks!_
|
||||
|
|
@ -10,12 +10,8 @@
|
|||
{% assign c = "" %}
|
||||
{% endif %}
|
||||
|
||||
{% for p in site.docs %}
|
||||
{% if p.url == item_url %}
|
||||
<li class="{{ c }}"><a href="{{ site.url }}{{ p.url }}">{{ p.title }}</a></li>
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{% break %}
|
||||
{% endif %}
|
||||
{% endfor %}
|
||||
{% assign p = site.docs | where:"url",item_url | first %}
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||||
<li class="{{ c }}"><a href="{{ site.url }}{{ p.url }}">{{ p.title }}</a></li>
|
||||
|
||||
{% endfor %}
|
||||
</ul>
|
||||
|
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|
|||
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